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Reports until 06:54, Monday 19 June 2017
H1 PEM (FMP, PEM)
corey.gray@LIGO.ORG - posted 06:54, Monday 19 June 2017 - last comment - 10:00, Monday 19 June 2017(36986)
"CS Temperature Is Low" Verbal Alarm (But Do Not See Temperature Drop)

13:40utc:  Received a "CS temperature is low" Verbal Alarm. 

I checked the FMCS & Dust Monitor temperatures in the LVEA, but I did not see a drop in temperature.  (In fact, the FMCS signals were all trending up at the time.)  I'm wondering if I should be looking at another channel?  Trends of the LVEA FMCS Zone Temps for the last 7days is attached.

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thomas.shaffer@LIGO.ORG - 10:00, Monday 19 June 2017 (36990)

For the Corner Station, Verbal looks at H0:FMC-LVEA_AVTEMP_DEGF. This channel does show a bit of a drop last night during the alarm (see attached 5 day trend), but this was not near its alarm limit and not even during the time of the alarm (see second attachment for 1 day plot of full data with a line on time of alarm). I have no idea why it may have falsely alarmed here, and I worry. I will look further into this.

About the test: The test will check that the temperature is within +/-1F of the nominal, with the nominal for the CS set to be 69.5F. This number I got when I asked either John or Bubba over a year ago, so it may need updating.

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